5 electrical wiring – Glow-worm BBU 54/4 User Manual

Page 15

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15

2000225024C

Diagram 5.4

Diagram 5.5

9394

9395

CONTROL
THERMISTOR
PHIAL
POCKET

MAINS
SUPPLY
PLUG

CONTROL BOX
SOCKET

CONTROL
BOX

Plug the short connecting lead (supplied in the fire front fittings
pack) into the boiler user control

Slide the boiler user control into position on the control box front,
making sure that it fits into the groove in the control box, and
connect the lead plug on to P.C.B., see diagrams 5.8 and10.4.

Refit the control box lid ensuring the boiler user control fits into
the slot in the lid, see diagram 5.7.

Refit the control box securing screws.

5.5 Testing - Electrical

Checks to ensure electrical safety must be carried out by a
competent person.

After installation of the system, preliminary electrical system
checks as below should be carried out,

1. Test insulation resistance to earth of mains cable.

2. Test the earth continuity and short circuit of all cables.

3. Test the polarity of the mains.

4. With the mains supply off. Plug the mains supply plug into the
control box socket, see diagram 5.5.

5.6 Overheat Cut-off Device
(sealed systems only)

A kit No. 2000463000 is available with Fitting Instructions.

5 Electrical Wiring

L
E
N

SECURING
SCREWS
(4)

Diagram 5.6

9634

CONNECTING
LEAD

CABLE
GRIP

SECURING
SCREW

SUPPORT
BRACKET

INSERT
RETAINING WIRE
AND SECURE

Diagram 5.7

9395

MAINS SUPPLY
PLUG

CONTROL BOX
SOCKET

CONTROL
BOX

L
E
N

SECURING
SCREWS
(4)

BOILER USER
CONTROL

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